Buildings consume a significant portion of the total delivered energy. While
the community has been working on monitoring the building energy usage, we argue
that an accurate accounting of individual occupants’ energy expenditure in
real-time is still the missing piece. And, this missing piece makes incentivizing
energy reduction a challenge. We take a systematic approach and identify the lack
of real-time association between human actions and observed energy consumption as
one roadblock. To this end, we first present a model that enables real-time
accounting of appliances with delay characteristics. Building on top of this
model, we introduce a complete system that fairly attributes energy usages of
shared resources, and reveals per-person energy footprint information. And, our
system has several ways to analyze and visualize individuals’ energy footprint.
Finally, we present the deployment experience at an office building.